Radar / Fire Emblem

Since Fire Emblem has been around for more than 20 years, the script writers have managed to slip sexual innuendos in the dialogue more than once. The absolute winner is Fire Emblem Awakening, which has more innuendo than all the other games combined, but Fire Emblem Fates just might give it a run for its money.

Games with their own pages

Pre-Awakening series (Shadow Dragon and the Blade of Light, Mystery of the Emblem, Genealogy of the Holy War, Thracia 776, The Binding Blade, The Blazing Blade, The Sacred Stones, Path of Radiance, and Radiant Dawn):

Fire Emblem Heroes:

http://tvtropes.org/pmwiki/pmwiki.php/Radar/FireEmblem